Article Tools

• 

The Femto Forum, 3GPP, and the Broadband Forum have announced that the world’s first femtocell standard has been officially published by 3GPP, paving the way for standardized femtocells to be produced in large volumes and enabling interoperability between different vendors’ access points and femto gateways. The new standard, which forms part of 3GPP’s Release 8, and interdependent with Broadband Forum extensions to its Technical Report-069 (TR-069), has been completed in just 12 months following close cooperation between 3GPP, the Femto Forum and the Broadband Forum.

The standard covers four main areas: network architecture; radio and interference aspects (both completed last December); femtocell management/provisioning; and security (finalized this month). In terms of network architecture, the crucial interface between potentially millions of femtocells and gateways in the network core has been called Iuh. This reuses existing 3GPP UMTS protocols and extends them to support the needs of high-volume femtocell deployments.

The new standard has adopted the Broadband Forum’s TR-069 management protocol, which has been extended to incorporate a new data model for femtocells developed collaboratively by Femto Forum and Broadband Forum members and published by the Broadband Forum as Technical Report 196 (TR-196). Widely used in fixed broadband networks and in set-top boxes, TR-069 will allow mobile operators to simplify deployment and enable automated remote provisioning, diagnostics checking, and software updates. The standard also uses a combination of security measures including IKEv2 (Internet Key Exchange v2) and IPsec (IP Security) protocols to authenticate the operator and subscriber and then guarantee the privacy of the data exchanged.

“In just 12 months we’ve gone from initial discussions to publication of the world’s first femtocell standard. Operators can now deploy femtocells in the knowledge that their vendors are working to the 3GPP standard,” said Adrian Scrase, the 3GPP’s Project Coordination Group secretary. “Considerable effort was expended in 2008 with 3GPP meeting a very demanding schedule for the availability of 3GPP approved specifications.”

“Our operator members have been insistent that the dozens of approaches to integrating femtocells with mobile operators’ core networks had to be filtered down to a single standard. This new standard is crucial in turning the many femtocell operator trials taking place around the world into mass market commercial deployments,” said Simon Saunders, chairman of the Femto Forum.

“All technologies require standards in order to make the transition from niche application to widescale adoption. By employing and extending best-of-breed standards, such as TR-069 for management of the Femto Access Point as part of the home network, this new femtocell standard has the best possible chance of succeeding. We are pleased to have collaborated on this new converged service with 3GPP and the Femto Forum,” said George Dobrowski, the Broadband Forum’s chairman.

Building on this success, work is already being done to further incorporate femtocell technology in the 3GPP’s release 9 standard, which will address Long-Term Evolution (LTE) femtocells as well as support more advanced functionality for 3G femtocells. Femtocell standards are also being developed for additional air interface technologies by other industry bodies. The 3GPP Technical Specifications all are available from www.3gpp.org:

22.220: Service requirements for Home Node B (HNB) and Home eNode B (HeNB)
23.830: Architecture aspects of Home Node B (HNB) / Home enhanced Node B (HeNB)
23.832: IMS aspects of architecture for Home Node B (HNB)
25.367: Mobility procedures for Home Node B (HNB); Overall description; Stage 2
25.467: UTRAN architecture for 3G Home Node B (HNB); Stage 2
25.468: UTRAN Iuh Interface RANAP User Adaption (RUA) signaling
25.469: UTRAN Iuh interface Home Node B (HNB) Application Part (HNBAP) signaling
25.820: 3G Home Node B (HNB) study item Technical Report
25.967: FDD Home Node B (HNB) RF Requirements
32.581: Telecommunications management; Home Node B (HNB) Operations, Administration, Maintenance and Provisioning (OAM&P); Concepts and requirements for Type 1 interface HNB to HNB Management System (HMS)
32.582: Telecommunications management; Home Node B (HNB) Operations, Administration, Maintenance and Provisioning (OAM&P); Information model for Type 1 interface HNB to HNB Management System (HMS)
32.583: Telecommunications management; Home Node B (HNB) Operations, Administration, Maintenance and Provisioning (OAM&P); Procedure flows for Type 1 interface HNB to HNB Management System (HMS)
32.821: Telecommunication management; Study of Self-Organizing Networks (SON) related OAM Interfaces for Home Node B (HNB)
33.820: Security of Home Node B (HNB) / Home evolved Node B (HeNB)